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Assignee: Aventis Research & Technologies GmbH & Co. KG


Location: DE
No. of patents: 6

NumberTitleIssue Date
6326502Method for producing epoxides through olefin oxidation with air or oxygen
The present invention provides a process for the epoxidation of alkenes of the formula (1) ##STR1## where R1, R2, R3 and R4 are, independently of one another, hydrogen, C1 -C20 -alkyl, C
12/04/2001
6316591Ordered poly(arylene-vinylene) terpolymers, method for the production and the use thereof as electroluminescent materials
Ordered poly(arylene-vinylene)terpolymers, process for their preparation and their use as electroluminescence materials Poly(arylene-vinylene) terpolymers comprising repeating units of the formula (I), ##STR1## where the symbols have the following meaning...
11/13/2001
6291383Process for preparing aromatic olefins in the presence of palladium catalysts comprising phosphite ligands
The invention relates to process for preparing monofunctional, bifunctional or/and polyfunctional olefins of the formulae (Ia), (Ib), (Ic) or/and (Id), ##STR1## where R1 to R3 are, independently of one another, hydrogen, (C...
09/18/2001
6248913Catalysts for olefin selective epoxidation with atmospheric oxygen
A catalyst for the selective oxidation of olefins in the presence of air or oxygen, comprising a compound of the formula (1) Mox Oy (L)z (1) where x is 1, 2 or 3, y is an integer from 0 to 2x+1, z is an integer from 1 to 2x, wherei...
06/19/2001
6222073Catalytic synthesis of N-alkylated anilines from olefins and anilines
Process for the preparation of an N-arylethylaniline of the formula (I) Ar--N(R1)2-n (CHR2 CHR3 Ar')n (I) by reacting an aromatic olefin of the formula (II) Ar'CR3 =CHR2 (II) with an aniline ...
04/24/2001
6042968Process for producing polybenzimidazole fabrics for use in fuel
A method for producing polybenzimidazole (PBI) fabrics for use as fuel cell or battery electrolytes by soaking a sulfonated or non-sulfonated PBI fabric in an acid solution, whereby the fibers of the fabric become swollen with the acid solution; and dryin...
03/28/2000
 
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